Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...

A welcome sight Thursday morning: Orcas in the Puget Sound. Experts say there’s one distinct thing people should know about ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

Pack-ice killer whales are highly social creatures, communicating through various vocalizations like pulsed calls and whistles. For the first time, researchers have recorded these vocalizations and ...

Learn more about how baleen whales split into two groups — fight or flight — and how these groups determine how loud they sing.

But the grieving mother isn’t a person – she's southern resident orca Tahlequah J35, pushing her dead calf through the waters ...

Some baleen whales avoid killer whale attacks by singing songs at deep frequencies that their predators cannot hear.

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers ...

Get Instant Summarized Text (Gist) Some baleen whale species sing at frequencies below 100 hertz, making their calls undetectable to killer whales, which cannot hear such low frequencies. These ...

The endangered southern resident killer whales that visit Puget Sound were listed for protection under the federal Endangered ...